Differential Spatiotemporal Patterns of Major Ions and Dissolved Organic Carbon Variations from Non-Permafrost to Permafrost Arctic Basins: Insights from the Severnaya Dvina, Pechora and Taz Rivers DOI Creative Commons

Yuanyuan Yang,

Ping Wang,

Chunnuan Deng

et al.

Land, Journal Year: 2024, Volume and Issue: 13(11), P. 1765 - 1765

Published: Oct. 27, 2024

The Arctic river basins, among the most sensitive regions to climate warming, are experiencing rapid temperature rise and permafrost thawing that profoundly affect their hydrological hydrochemical systems. However, our understanding of chemical export from basins oceans remains limited due scarce data, particularly in permafrost-dominated regions. This study examines spatiotemporal variations seasonal dynamics major ions (Na+, K+, Mg2+, Ca2+, Cl−, SO42−) dissolved organic carbon (DOC) concentrations across three with varying extents: Severnaya Dvina (2006–2008, 2012–2014), Pechora (2016–2019) Taz Rivers (2016–2020). All data were sourced published Chemical Geological researches taken Mendeley PANGAEA datasets. Our results showed DOC ranged 1.75 26.40 mg/L, River exhibiting highest levels concentrations, alongside significantly elevated ion compared other two basins. A positive correlation was observed between discharge, peaks during spring flood summer baseflow leaching processes. exhibited values flood, reaching mg/L 8.07 respectively. In contrast, had runoff season, but concentration reached its value 11.69 summer. Specifically, a 1% increase discharge corresponded 1.25% 1.04% River, while there no significant River. Major demonstrated negative remaining relatively high winter low-flow period. robust power-law relationship observed, distinct depending on extent. Rivers, characterized by extensive permafrost, increasing trends accompanied decreasing whereas non-permafrost-dominated basin opposite pattern. also displayed delayed peak more complex patterns. These findings highlight importance extents implications for water quality environmental protection these vulnerable

Language: Английский

Dissolved Major and Trace Elements in the Largest Eurasian Arctic Rivers: Ob, Yenisey, Lena, and Kolyma DOI Open Access
В. В. Гордеев, Oleg S. Pokrovsky, Alexander V. Zhulidov

et al.

Water, Journal Year: 2024, Volume and Issue: 16(2), P. 316 - 316

Published: Jan. 17, 2024

In contrast to fairly good knowledge of dissolved carbon and major elements in great Arctic rivers, seasonally resolved concentrations many trace remain poorly characterized, hindering assessment the current status possible future changes hydrochemistry Eurasian Arctic. To fill this gap, here we present results for a broad suite largest rivers Russian (Ob, Yenisey, Lena, Kolyma). For context, also that are more routinely measured these rivers. Water samples study were collected during an international campaign called PARTNERS from 2004 through 2006. A comparison element obtained with average world’s shows most similar or significantly lower than world average. The mineral content three greatest Lena) varies within narrow range (from 107 mg/L Yenisey 123 Ob). Kolyma’s is (52.4 mg/L). Fluxes all calculated using water discharge 2004–2006 period. Based on flux estimates, specific export (i.e., t/km2/y) was followed by Ob, Kolyma decreasing order. Element pairwise correlation analysis identified several distinct groups depending their sources relative mobility river water. There negative between Fe DOC concentration Ob River, which could be linked different components river. annual yields each generally consistent values assessed other mid-size small subarctic.

Language: Английский

Citations

9
Export fluxes of dissolved, colloidal and particulate organic carbon, major and trace elements from the Ob River and its tributaries across seasons DOI Creative Commons

Ivan V. Krickov,

Sergey N. Vorobyev, Larisa G. Kolesnichenko

et al.

Water Research, Journal Year: 2025, Volume and Issue: 275, P. 123221 - 123221

Published: Jan. 30, 2025

Language: Английский

Citations

1
Trace Element Composition of the Dissolved Matter Runoff of the Russian Arctic Rivers DOI Open Access
А. В. Савенко,

Vitaly S. Savenko

Water, Journal Year: 2024, Volume and Issue: 16(4), P. 565 - 565

Published: Feb. 14, 2024

Data on the content of dissolved trace elements (P, Si, Li, Rb, Cs, Be, Sr, Ba, Mn, Fe, Co, Ni, Cu, Zn, Cd, Tl, Pb, Al, Ga, Y, Ti, Zr, Hf, Th, U, rare earth elements, F, B, Ge, V, As, Sb, Cr, Se, Mo, and W) in river runoff from Russian Arctic sea watersheds were systematized generalized. There is a tendency for decrease element concentrations direction west to east considered (the White, Pechora, Kara, Laptev, East Siberian seas). It was shown that are general consistent with modern estimates average composition global runoff.

Language: Английский

Citations

8
Organic carbon, major and trace element release from and adsorption onto particulate suspended matter of the Ob River, western Siberia DOI Creative Commons
Artem G. Lim,

Ivan V. Krickov,

Oleg S. Pokrovsky

et al.

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 948, P. 174735 - 174735

Published: July 14, 2024

Particulate suspended matter (PSM) of rivers is a significant factor for carbon, nutrient, and trace metal transfer from land to ocean. Towards better understanding the role that PSM exerts on major elements in riverine systems, here we report results an experimental study which utilizes two-fold approach assess interaction between solutes. First, measured element leaching (via desorption dissolution distilled water, simulating snow melt) largest Siberian river, Ob River. Second, quantified capacity adsorb dissolved organic carbon (DOC), macro- micronutrients organic-rich waters river floodplain. We documented sizable some metals, oxyanions insoluble PSM; majority (>50 %) were released over first hour reaction. In contrast, River was capable removing 20 90 % OC, nutrients (Si, P), tributary floodplain fen. Our experiments demonstrated preferential adsorption aromatic compounds large molecular size colloids. Taken together, solutes by can sizably decrease concentration modify distribution, therefore potential bioavailability (DOC, P, Si) micronutrients. Overall, exhibited high reactivity with respect natural modifying elemental composition fen waters. This surface-adsorbed (particulate) form especially important during spring flood requires specific consideration short-term biogeochemical cycles continental

Language: Английский

Citations

4
Uniform features of organic carbon and trace metal colloidal carriers in humic surface waters: A case study of Cameroon DOI Creative Commons
Oleg S. Pokrovsky, Jean‐Jacques Braun

Chemosphere, Journal Year: 2025, Volume and Issue: 373, P. 144189 - 144189

Published: Feb. 4, 2025

Language: Английский

Citations

0
Hydrochemical Characteristics of Waters of the Mouth Section of the Kolyma River in the Modern Period DOI
А. В. Савенко,

V. S. Savenko,

В. А. Ефимов

et al.

Water Resources, Journal Year: 2025, Volume and Issue: 52(1), P. 129 - 146

Published: Feb. 1, 2025

Language: Английский

Citations

0
Terrestrial inputs of nutrients and dissolved organic carbon to the Arctic Ocean and their influence on primary production DOI

S.J. Mathew,

J. K. Hong,

Ji‐Hoon Kim

et al.

Marine Environmental Research, Journal Year: 2025, Volume and Issue: 209, P. 107182 - 107182

Published: April 25, 2025

Language: Английский

Citations

0
Arsenic Mobilization from Thawing Permafrost DOI
Elliott K. Skierszkan, Valerie A. Schoepfer,

Matthew Fellwock

et al.

ACS Earth and Space Chemistry, Journal Year: 2024, Volume and Issue: 8(4), P. 745 - 759

Published: March 19, 2024

Thawing permafrost releases labile organic carbon and alters groundwater geochemistry hydrology with uncertain outcomes for the mobility of hazardous metal(loid)s. Managing water quality in thawing regions is predicated on a detailed understanding speciation abundance metal(loid)s soils porewaters produced during thaw, which remains limited at present. This study contributes new knowledge sources fate arsenic thaw organic-rich using samples collected from subarctic region associated geogenic (Dawson Range, Yukon, Canada). Several cores active-layer this were analyzed their solid-phase aqueous geochemical characteristics speciation. Porewaters extracted after under anaerobic conditions analyses. Bedrock field site also mineralogy. X-ray diffraction near-edge spectroscopy (XANES) analyses weathered bedrock upgradient soil sampling locations contained arsenic(V) hosted iron-(oxyhydr)oxides scorodite. XANES micro fluorescence indicated mixture arsenic(III) arsenic(V), indicating redox recycling arsenic. Soil-bound was colocated iron, likely as arseniferous that have been encapsulated by aggrading over geologic time. However, porewater containing elevated dissolved (median 40 μg L–1, range 2–96 L–1). Thawed iron 5.5 mg 0.5–40 L–1) 423 72–3240 L–1), indicative reducing conditions. highlights can be found reactive forms soil, its release to produce poor quality.

Language: Английский

Citations

3
Mineral states and sequestration processes involving soil biogenic components in various soils and desert sands of Inner Mongolia DOI Creative Commons
Xuemei Yang, Xin Gao, Khan M. G. Mostofa

et al.

Scientific Reports, Journal Year: 2024, Volume and Issue: 14(1)

Published: Nov. 18, 2024

Soil biogenic components are subject to continuous sequestration, and export from soils into the surrounding air water environments. However, processes involving stability or lability of their mineral states remain still unclear. To assess these issues, we have measured various in a number agricultural, forest, grassland, deep soils, as well desert sands Inner Mongolia, both solid state liquid extracts. The contents soil organic carbon (SOC) total nitrogen (STN) were higher than sands, whilst those sulfur (STS) inorganic deeper soils. significant positive correlations found between STS SOC, STN, negative with pH δ13C-SOC all suggest pH-dependent sequestration C, N, S. decreased organo-mineral complexes at acidic pH, resulting acidification humic substance (HS) functionalities, leads availability nutrients that facilitates matter (SOM). Conversely, an increase enhances by promoting negatively charged HS which reduces SOM. enrichment (-17.63 -7.10‰) its depleted values (-24.9 -18.8‰) occurrence C desert, via uptake enriched atmospheric CO2 (-8.4‰). fluorescence spectra molecular weights typically different predominant relatively low weight (MW) (< 15–25 kDa) alkali-extracted (complexed state: CS) high MW (> 25 − 15 water-extracted (labile LS) suggest, respectively, involvement for environment. quantities LS CS differ significantly on dependence characteristics, implying corresponding These findings will provide useful input management soil/sand ecosystems.

Language: Английский

Citations

3
Unravelling molecular fractionation of dissolved organic matter on ferrihydrite-phosphate complexes DOI

Ya‐Nan Ou,

Jialin Chi, Fangbai Li

et al.

Chemical Geology, Journal Year: 2023, Volume and Issue: 645, P. 121887 - 121887

Published: Dec. 14, 2023

Language: Английский

Citations

7